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Common NameSpotted spreadwing SeasonalityLate summer, mid July to early October (Walker). IdentificationThorax blackish-bronze above, yellowish below, with clear wings. Two dark spots are found on the metepimeron. Male: 34-36 mm long, up to 42 mm in some populations. Inferior appendages less than half the length of superior appendages. Pruinosity develops with age at wing base and abdomen (segments 1,2, 8, 9 and 10). Female: 32-34 mm long, up to 39 mm in some populations. Pruinosity develops with age on the pterothorax and wing base.

Common NameEmerald Spreadwing; Scarce Emerald Damselfly SeasonalityEarly summer, mid-June to late August (Walker). IdentificationThe only Lestes in Alberta with bright metallic green upperparts. Male: 36-38 mm long. Metallic green on upper thorax, humeral stripe very thin or absent. Inferior appendages very broad at the tips in lateral view. Pruinosity develops with age to cover the pronotum, parts of the thorax, and segments 8-10. Female: 27-29 mm long. Metallic green above, humeral stripe thin, green of the mesepimeron extending onto the mesinfraepisternum. Does not develop pruinosity. (Walker)